Window screen



m T N E V m J. J. RITTER WINDOW SCREEN Jan. 7, 1930` Filed Jan. 28, 1929A Patented Jan. 7, 1930 UNITED STATES PATENT OFFICE-M JOHN J'. RITTER,OF URBANA, OHIO, ASSIGNOR T0 THE W. B. MARVIN MANUFAGTUR- v ING COMPANY,or URBANA, OHIO, A CORPORATION OF OHIOy WINDOW SCREEN Appncauon'iedJanuary 2s, 11929. semina. 335,542.

vide intel-engaging parts between the sections of the screen such that agood sliding connection is secured and the proper relation mamtained.

In the accompanying drawings Fig. l is an elevation of the 'rear side ofa screen embodying the improvements, the screen in this case beingformed of two frames telescoping one with the other.

Fig. 2 is a fragmentary top plan view of the same, enlarged.

Fig. 3 is a partial enlarged front elevation, the broken ends beingshown in perspective.

Fig. 4 is an enlarged vertical section on the line 4 4 of Fig. 3 with aportion of a window sash shown in place.

Fig. 5 is an enlarged vertical section showing the improved screen inplace between the sash and sill of a window.

Referring to the drawing, each section of the screen is formed of aframe, one indicated at A and the other at B, of sheet metal. Each frameis formed with two longitudinal top and bottom strips l and 2 connectedby vertical strips 3 and 4, the strips being connected by spot-weldingor any other suitable manner to form rectangular shaped frames in whichthe wire mesh 5 is stretched and secured. The wire mesh screen may besecured to the frames by tongues 6 and tabs 7 in the manner shown anddescribed in my pending application Serial No. 260,997, liled March12th, 1928.

Heretofore with screens of this type, con siderable space has been leftbetween the sash and sill and one of the sections, owing to the factthat the sash and sill made contact on Vthat section which was off-setby reason of the telescoping construction. To obviate this 50disadvantage and to enable the window and the strips 2.

sill to make full contact with each of the sections, the construct-ionnow to be further described has been devised. p

Referring now to Fig. 4, it will be noticed vthat strip l, which may beeither the top or bottom horizontal frame member of section A, has itsouter edge bent to form a horizontal flange la, at substantially rightangles to the vertical leg. The horizontal flange la continues as lb,and, is bent upwardly, having a slight angular deviation from theportion la and terminates in a downwardly bent flange 1c substantiallyparallel to the mainvertiOal strip l. Y'

The horizontal top andbottom frame strips 2 ofsection B are also bent ina peculiar .manner to form complementary members which intel-engage withthe partsof frame member A. As viewed in Fig. 4 the outer edge of theframe strip 2 is bent at an acute angle to the plane of the strip 2, asindicated at'2, then turns upwardlyforming a vertical flange 2bsubstantially parallel to the strip 2, and it will be noticed that t-hejuncture between the strip 2 and angular portion 2EL is rounded, asindicated at 8. The screen sections A and B when telescoped make contactone with the other at the rounded point 8, lateralld-isplacement beingrlimited by the contactof the lower .edges of the flanges-2b with thesloping part 2Il of strip 2, and also by the fact that these flanges 2bare confined by the flanges`2l of n will be noticed. also, that theedges 9 t the bends between the flanges 1b and 1c are l 1 yro slightlyoutside of the upper edges 2*of the flanges 2b and that therefore in theVassembled screen the distance between the edges 9 at the top and bottomof the Vframe section A is greater than the distance between the edges2c in section B, so that in closing the window on. the screen, Contactis first made lwith the edges 9; with greater' pressure these edges areforced inwardly towards Aone another, until the edges 2d are met by thewindow and sill,

whereupuon-full contact with all edges 9 and Y 2C of the screen withsash and sill is made.

Having thus described my invention, I

members formed of sheet meta-l strips, the outer edges of the top andbottom strips of one frame member being bent to form lateral channelseach of which has a sloping inner wall and an outer vertical wall, theouter edge of which wall forms acontact point. the outer edges of thetop and bottom strips of the other frame members being bent to formlaterally-` extending portions each of which has an inturned outer edgeadapted to `be reeeivedin the corresponding channel of the other framemember to prevent lateral displacement, said laterally-extending portionbeing also inclmed outwardly to provide acontact point atits outer edgewhich (ro-acts with the con tact point on the Verticaly walllof thecorrespending channel, said laterally-extending portion being adapted tospring inwardly under pressure ot the window and sill to bring saidcontact points iii-horizontal alignment with each other, the slidingcontacts between .said frame membersbeing between kthe inner ksurtacesof said laterally-extending portions .of onetrameV member and theliunetures between the channels and the strips ot the other rframemember. said juncture points being rounded.

Q.- ln a screen structure, a pair ot frame members termed of sheet metalstrips, the outer edges of the top and bottom strips of one trainemember being bent to Jform lateral channels each ot which hasn 'Verticalouter wall. theouter edge ot which forms a contact point for the windowand sill, the outer edges ofV the-top and bottom strips of the othermember being each bent to form a laterallyextending outwardly inclinedportion. the outer edge of which is inturned to be received in' thecorresponding channel ot' the other member, the sliding contact betweenthe members being' on an intermediate portion of the V,under `surfaceof` each laterally-extending portion and the points where the channelsbcvgin, the outer edges of said laterally-extending portions'formingyContacts with the wir.- dow and sill. and adapted when under tnepressure of the window andsill tobe pressed in line with the Contactpoint-s ot the Vertical walls ot the channel.

In testimony` whereof, I have hereunto set my hand this second day ofJanuary. 1929.

. JOHN J RITTER.

